No difference in response rate to a mailed survey among prostate cancer survivors using conditional versus unconditional incentives.
D000368:Aged; D003657:Decision Making; D005382:Financing, Personal; D019538:Health Care Surveys / Q000592:standards*; D006304:Health Status; D006801:Humans; D008297:Male; D008875:Middle Aged; D009042:Motivation; D011471:Prostatic Neoplasms; D044469:Racial Groups; D015203:Reproducibility of Results; D012107:Research Design; D017741:Survivors; D013689:Telephone; D013997:Time Factors